高速实时长时无压缩数字视频记录分析系统

提出了一种由高速摄像机、高性能采集卡、视频服务器及记录分析软件组成的系统,在完成对数字图像的高速实时无压缩记录的同时,还可实现实时回放与处理的功能。采用具有异步I/O功能的SCSI磁盘阵列,基于RAID技术,解决了快速CPU和慢速磁盘I/O之间的瓶颈。实验结果表明,系统可实现对648(H)×484(V)的黑白数字图像以120帧/s的速度实时无丢帧的记录与处理。

High speed real-time uncompressed digital video record and analysis system

A system composed by high speed camera, high speed frame grabber, video server and software for record and analysis was proposed. It can acquire uncompressed digital image data in high speed and real-time, and complete the function of display and processing simultaneously. SCSI hard disk array and RAID technique were adopted to break the bottleneck between high speed CPU and low speed hard disk I/O. It was proved that the system can acquire and process 120 frames monochrome digital image (648(H)×484(V)) per second in real-time and there is no losing frames in the whole process by the experiment result.